Window operating mechanism



July 22, 1941- J. AMUNDSON WINDOW OPERATiNG MECHANISM 5SheeEs-Sheet 1Filed Jan. 25, 1939 (70% flmarza'isviz INVENTOR.

ATTORNEYS.

y 22, 1941- J. AMUNDSON WINDOW OPERATING MECHANISM 5 Sheets-Sheet 2Filed Jan. 25,l939

IN VEN TOR.

A TTORNEYS.

J. AMUNDSON WINDOW OPERATING MECHANISM July 22, 1941.

Filed Jan. 25, 1939 5 Sheets-Sheet 25 70k Q/fT/ZZLIZJQSUIZ JNVENTOR.

ATTORNEYS.

I July 22, 1941. V

J. AMUNDSON Filed Jan. 25, 1939 5 Sheets-Sheet 4 \X N \1 ZamoraINVENTOR.

ATTORNEYS.

y 1941- J. AMUNDSON WINDOW QPERATING MECHANISM 5 Sheets-Sheet 5 FiledJan. 25, 1939 IN V EN TOR.

ATTORNEYS.

- Patented Y UNITED sTAT ES PATENT oFFics primarily for operatingautomobile windows although it is to be understood that it can be usedalso for operating windows in buildings and for opening and closingsliding doors.

An object of they present invention is to'provide a motor-actuated reedscrew having a lazytongconnection with the member to be actuated. saidmotor being reversiblewhereby the window or other structure can beshifted in any desired direction.

' Figure 6 is a side elevation of the other motor reversing switch.

Figure 'l is a sectionthrough the gear case of the motor showing themeans ior transmitting motion irom the motor shaft to the operatingscrew.

Figure 8 is a section on line H, Figure 7. Figure 9 is a plan view ofthe structure shown a in Figure 8.

A still further object is to. provide an arrangement of switcheswhereby? the operation of the motor will be stopped as soon asthe windowor other structure beingshiited reaches either limit of its movement. r

A still further object is to provide a novel form oiswitch-by which theoperation of the motor can be controlled by the operator so as to bringthe movement of the window to a stop before its limit of movement isreached.

A still iurther'obiect is to provide relief means for preventing injuryto the mechanism such as might result from continued operation or themotor after the window has ceased to move.

A still further object is to provide simple and compact operatingmechanism which can be installed readily in a door or other part of amotor vehicle or within'the wall of a building or other i structure. l

' v With the foregoing and other objects in view which will appear asthe description proceeds, the invention consists of certain noveldetails of construction and combinations or parts hereinafter more fullydescribed and pointed out in the claim, it being understood that changesmay be made in the construction and arrangement of parts withoutdeparting ,irom the spirit of, the

' invention as claimed.

In the accompanying drawings. the preferred form of the invention hasbeen shown.

In said drawings Figure 1 is an elevation of the frame of an automobiledoorv in which is shown the mechanism constituting the presentinvention, the window being shown open. I

showing the win- Figure 10 is an elevation of the controlling switch foruse by the operator.

Figure 11 is a section on line i|ll, Figure 1Q.

Figure 12 is a section on line |2'-l2, Figure 11.

Figure 13 is an elevation of the inner or small end portion of theswitch showing the opposed contacts thereon.

Figure 14 is a view showing in diagram the wiring of the switches andmotor. a

Figure 15 is an elevation of a modified arrangement oi mechanism wherebya window can be given a sliding movement after being fully raised, theraised window being shown in position prior to said sliding movement.

- Figure 16 is a view similar to Figure l5showing the position of thewindow after it has been slid to closed position.

Figure 7 is an enlarged section through a por-' tion of the switchshowing some of the contacts, said contacts being of slightly modifiedconstruction.

cealed within recess 2 when the window is open but to move from saidrecess and across the window opening I. i 3

To the-lower edge of .the window (is attached a strip I provided withlongitudinal slots i and movably mounted in ther'espective slots arestuds I projecting from the upper ends of a lazy-tongs .I also housed.in recess 2. The lower ends 01 the lazy-tongs, as shown particularly inFigure 3, are provided with downwardly extended forks II which straddleand are pivotally connected to nuts II and i2 respectively;- Thesenutsare mounted on a feed screw ll o ne end of which is iournalled in abearing N at one end of a base strip. ll while the other end of thescrew extends into and bears within a gear case ll pro.-

vided at one end of a motor housing ii. The shait ll of the motor in thehousing has a gear "which is in constant mesh with a large {gear 20.This large gear has a hub 2! formed with a diametrical groove 22. A pin23 extends diametrically through the adjacent portion of screw l3 and aspring 24, which is mounted on the screw thrusts at one end against gearand 5 at its other end against a collar fastened on the screw. Thus gear20 normally is pressed against pin 23 so that said pin will be seated ingroove 22. Consequently, under ordinary work-' ing conditions, gearels,while rotating, will rotate gear 20 which, in turn, will drive the screwl3. However should the screw meet with excessive resistance to itsrotation, the hub 2| would be pushed away from pin 23 against the actionof spring-24 so that'gear 20 thus could rotate independently of thescrew.

Screw i3 is provided with a left-hand thread extending from one end to.the center thereof and a right-hand. thread extending from the centerto the other end thereof. One threadis engaged by the nut II while theother thread is engaged by the nut l2. Obviously, therefore, when thescrew is rotated in one direction, the two nuts will be fed toward eachother and will cause the lazy-tongs to operate so as to thrust thewindow 4 into position to close the opening 5. When the screw is rotatedin the opposite direction, however, the nuts will be moved apart,thereby contracting the lazy-tongs and withdrawing the window from theopening 5.

A double switch having separate pairs of conand has a pin 28 extendinginto the path of nut ll, said nut being preferably beveled, as at 23,

, so that at the instant the window 5 is closed by the operation of thelazy-tongs, nut II will shift pin 23 so as to break the electricalconnection at 'both contacts 26 and 27.

' break the electrical connections at both pairs of contacts 30 and 3|.Normally, however, when the nut I2 is out of said extreme position, thecontacts are closed together as shown so the circuits can be completedtherethrough.

As has been shown in 'the drawings the respec- I tive switches areinsulated from the supporting structure. For example the double switch Awhichincludesthe contacts 26 and 21 can be mounted on a block 33 ofinsulating material and the sever-a1 contacts and the interposedinsulation strips which have been indicated at 34, can

, all be held together and to the base strips 15 by a bolt 35 insulatedfrom all of the parts as shown in Figure 5. These bolts and pin 28 areadjust-.

able in slots for proper placing of the switch. A somewhat similararrangement is provided for the other, double, switch indicated at Bwhere suitable insulating portions 36 are interposed between the metalparts of the switch, all parts grin detail a special form of switch tobe operated by harfd whereby, the circuit to the motorcan be broken andthe window can be moved either upwardly or downwardly at the will of theoperator. This special switch includes a' socket mem-' ber 33 having atapered recess 40.. In the end 7 tacts 26 and2l is secured to the basestrip it wall of this recess are stationary contacts 4! and 42 in-theform oftopposed arcuate plates concentric with the center of the recessand these plates are electrically connected to the respective terminalsof battery 43.

Located on the wall of recess. are opposed pairs of contacts 44 and 45and located between these contacts and equidistant therefrom are opposedpairs of contacts 48 and 47. The contacts of each pair are located oneabove the other.

A movable switch member in the form of a plug 48 is rotatably mountedwithin recess and is provided with a knob 48 whereby it can be andprovided with extensions, 52 and 53 which project partly across the endof the plug or movable member 48 so that they can engage the re- 20trically connect the contacts of either of the pairs tit and st or 46and 67.

The motor used in connection with this apparatus can be of any desiredtype but it is preferred to use a series-wound motor because of itsstarting torque properties and because its brushes are all properlycentered so that the armaturecan be started in either direction forreversal of the tongs. Howeverthe type of motor used and the sizethereof will be dependent upon the conditions present. In Figure 14 therespective brushes of the motor have been indicated at 56 and 55 whilethe fields have been indicated at 53 and W. The several parts can beelectrically connected as indicated in Figure 14 and the operation willbe as follows: 5

When it is desired to. raise the window, the operator turns knob 49until an index or pointer 58 carried thereby is brought to apredetermined position which, for example, can be designated by the wordup. At this time the circuit will be closed through the contacts 431 andt6 and the motor caused to rotate in one direction so as to move thenuts I! and I2 toward each other and cause thelazy-tongs to be extendedas in Figure 2. The extension of the tongs will be gradual and thewindowwill be gradually moved to position across opening 5. Should it bedesired to stop the movement of the window before it is entirely closed,all that is necessary is for the operator to return the movable memberof the switch to its initial position so as to break the circuit to themotor. However should the switch be left in the upf position; the window4 would continue to move until it reaches full closed position at whichtimethe beveled face 23 of nut ll would contact with pin 28 and breakthe circuit to the motor by moving apart the contacts 26 and thecontacts 21. 1

Thereafter should it be desired to Open the window, the operator turnsthe movable member 48 of the switch until brought to the down positionwhereupon electrical connections will be made by the strips" and II atthe contacts 44 and 45.. This will result in the rotation of the motorin the opposite direction and, consequently,

the lazy-tongs 9 will be retracted so as to move the window 4 away fromfull closed position. At any time during this movement the circuit tothe motor can be broken by theoperator turning the member 48 to itsintermediate or neutral position. However should the member" be retainedin down" position, the movement of the window tofull open position wouldcontinue until nut l2 has contacted with brush member 32. This end ofthe other arm 84 of the lazy-tongs will work freely within the inclinedextension 630! slot 60. When the lazy-tongs are retracted, the foregoingoperation is reversed, the window it being puliedout of the.positionshown in Figure 16 to the position shown in Figure 15. after which thewindows or doors of buildings or other structures, can be varied to meetthe requirements. Some types of automobiles and the like have slidingwindows which, after being raised, are' thrust transversely of theframe. This is true for example of "Ford" and Plymouth automobiles. Forthe purpose of obtaining this compound movement, it is intended toprovide a structure such as shown for example in Figures 15 and 16. Byreferring to said figures it will be noted that the window 58 has itsbottom flange 59 provided with spaced alining slots 60 and CI. That endof slot 6| nearest the center'ot the flange is formed with a verticalextension 82 while that end of slot 60 is provided at its inner end withan inclined extension 83. The upper arms of the lazy-tongs 64 are insliding engagement with the slotted portion of the flange and operate asheretofore stated to raise the window ,to closed position.- In themodified construction it is drawn downwardly as heretofore explained.Another modification-of the invention has been illustrated in Figure 1'7wherein the contacts-t5 have been shown spring-pressed so as to mairi-.

tain intimate engagement at all times with the adjacent surface of therotatable member of the switch. These contacts can be-used in'lieu ofthe contacts H, 42, ll, 45, 4B and H.

What is claimed is':

In a vehicle construction, a panel having a recess therein and alsohaving an opening therethrough, a window slidable in said recess andacross said opening, said window having a flange secured thereto at itsbottom edge and said flange having slots therein, an electricmotor-positioned in said recess adjacent the lower portion thereof, a'reyersely threaded shaft extending outwardly from said motor and alongthe lower portion of said recess. a support for said shaft and motor 7comprising an elongated bar extending beneath said shaft and having anend of said shaft jourshown in Figures 15 and 16, however, thelazytongs, after bringing the window I8 to its fully raised position cancontinue to fold so that'the upper end of one arm, while moving upwardlywithin the vertical extension 62 will exert a thrust nailed therein,said bar having legs spacing it above the bottom of said recess. lazytongs threadedly connected with said reversely threaded shaft and alsobeing connected with the slots in said bottom window flange, a controlswitch for said motor located on saidbar and extending longitudinally offlanges", thereby causing the window 58 to slide into fully closedposition from the location shown in Figure 15 to the one showndownwardly therefrom between said bar and the bottomof said recess,means on said lazy tongs for operating said switch, and a manual controlpositioned exteriorly of said recess panel,

JOHN AMUNDSON.

in Figure 16. During this movement the upper

